INIT: Entering runlevel: 2

[info] Using makefile-style concurrent boot in runlevel 2.
[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c.
[....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c.
[....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c.

Debian GNU/Linux 7 syzkaller ttyS0

Warning: Permanently added 'ci-upstream-mmots-kasan-gce-1,10.128.15.196' (ECDSA) to the list of known hosts.
2017/12/04 14:32:47 fuzzer started
2017/12/04 14:32:47 dialing manager at 10.128.0.26:36183
syzkaller login: [   32.807857] WARNING: CPU: 0 PID: 3092 at kernel/sched/wait.c:79 __wake_up_common+0x433/0x770
[   32.809181] Kernel panic - not syncing: panic_on_warn set ...
[   32.809181] 
[   32.810153] CPU: 0 PID: 3092 Comm: syz-fuzzer Not tainted 4.15.0-rc1-mm1+ #35
[   32.811124] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   32.812343] Call Trace:
[   32.812704]  dump_stack+0x194/0x257
[   32.813197]  ? arch_local_irq_restore+0x53/0x53
[   32.813825]  ? vsnprintf+0x1ed/0x1900
[   32.814342]  panic+0x1e4/0x41c
[   32.814775]  ? refcount_error_report+0x214/0x214
[   32.815409]  ? show_regs_print_info+0x65/0x65
[   32.816017]  ? __warn+0x1c1/0x200
[   32.816488]  ? __wake_up_common+0x433/0x770
[   32.817068]  __warn+0x1dc/0x200
[   32.817515]  ? __wake_up_common+0x433/0x770
[   32.818107]  report_bug+0x211/0x2d0
[   32.818603]  fixup_bug.part.11+0x37/0x80
[   32.819149]  do_error_trap+0x2d7/0x3e0
[   32.819676]  ? math_error+0x400/0x400
[   32.820230]  ? check_noncircular+0x20/0x20
[   32.820801]  ? find_held_lock+0x39/0x1d0
[   32.821353]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[   32.822005]  do_invalid_op+0x1b/0x20
[   32.822505]  invalid_op+0x22/0x40
[   32.822972] RIP: 0010:__wake_up_common+0x433/0x770
[   32.823626] RSP: 0018:ffff8801d3d8f4b0 EFLAGS: 00010046
[   32.824377] RAX: 0000000000000000 RBX: ffff8801cc5eb350 RCX: 0000000000000004
[   32.825330] RDX: 1ffffffff0bd9741 RSI: ffff8801cc5eb368 RDI: 0000000000000082
[   32.826293] RBP: ffff8801d3d8f5b0 R08: 0000000000000000 R09: 0000000000000000
[   32.827285] R10: 0000000000000000 R11: ffffffff8748cda0 R12: 0000000000000000
[   32.828248] R13: ffff8801cc5eb390 R14: 0000000000000001 R15: ffff8801cc5eb3f0
[   32.835503]  ? __lock_is_held+0xbc/0x140
[   32.839536]  ? lock_release+0xda0/0xda0
[   32.843479]  ? do_wait_intr+0x3e0/0x3e0
[   32.847427]  ? __lock_is_held+0xbc/0x140
[   32.851462]  __wake_up_locked+0x11/0x20
[   32.855406]  ep_insert+0x15d0/0x1b10
[   32.859102]  ? ep_poll+0x1190/0x1190
[   32.862788]  ? lock_release+0xda0/0xda0
[   32.866728]  ? trace_event_raw_event_sched_switch+0x800/0x800
[   32.872579]  ? lock_downgrade+0x980/0x980
[   32.876698]  ? rcu_note_context_switch+0x710/0x710
[   32.881601]  ? __might_sleep+0x95/0x190
[   32.885544]  ? SyS_epoll_ctl+0x8a3/0x1ab0
[   32.889661]  ? __mutex_lock+0x16f/0x1a80
[   32.893690]  ? SyS_epoll_ctl+0x8a3/0x1ab0
[   32.897807]  ? lock_downgrade+0x980/0x980
[   32.901921]  ? SyS_epoll_ctl+0x8a3/0x1ab0
[   32.906044]  ? lock_release+0xda0/0xda0
[   32.909990]  ? __lock_is_held+0xbc/0x140
[   32.914033]  ? __fget+0x362/0x580
[   32.917463]  ? iterate_fd+0x3f0/0x3f0
[   32.921229]  ? find_held_lock+0x39/0x1d0
[   32.925267]  ? lock_downgrade+0x980/0x980
[   32.929383]  ? __might_fault+0xe0/0x1d0
[   32.933328]  ? __fget_light+0x29d/0x390
[   32.937271]  ? fget_raw+0x20/0x20
[   32.940696]  ? is_bpf_text_address+0xa4/0x120
[   32.945160]  ? kernel_text_address+0x102/0x140
[   32.949713]  ? __might_sleep+0x95/0x190
[   32.953666]  ? ep_unregister_pollwait.isra.7+0x590/0x590
[   32.959094]  SyS_epoll_ctl+0x12e4/0x1ab0
[   32.963134]  ? SyS_epoll_ctl+0x12e4/0x1ab0
[   32.967354]  ? save_stack+0xa3/0xd0
[   32.970964]  ? SyS_epoll_create+0x240/0x240
[   32.975257]  ? __lock_is_held+0xbc/0x140
[   32.979302]  ? __fd_install+0x288/0x740
[   32.983250]  ? get_unused_fd_flags+0x190/0x190
[   32.987799]  ? may_open_dev+0xe0/0xe0
[   32.991577]  ? rcu_pm_notify+0xc0/0xc0
[   32.995435]  ? putname+0xee/0x130
[   32.998857]  ? putname+0xee/0x130
[   33.002276]  ? rcu_read_lock_sched_held+0x108/0x120
[   33.007262]  ? kmem_cache_free+0x249/0x280
[   33.011467]  ? putname+0xf3/0x130
[   33.014892]  ? do_sys_open+0x320/0x6d0
[   33.018756]  ? entry_SYSCALL_64_fastpath+0x5/0x96
[   33.023570]  ? trace_hardirqs_on_caller+0x421/0x5c0
[   33.028565]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[   33.033293]  entry_SYSCALL_64_fastpath+0x1f/0x96
[   33.038017] RIP: 0033:0x45f7d8
[   33.041175] RSP: 002b:000000c42019f4b8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e9
[   33.048852] RAX: ffffffffffffffda RBX: 0000000000000045 RCX: 000000000045f7d8
[   33.056100] RDX: 0000000000000003 RSI: 0000000000000001 RDI: 0000000000000004
[   33.063339] RBP: 000000c42019f720 R08: 0000000000000000 R09: 0000000000000000
[   33.070578] R10: 000000c42019f4e4 R11: 0000000000000246 R12: 000000c421a299b9
[   33.077814] R13: 00000000000000f5 R14: 0000000000000011 R15: 0000000000000018
[   33.085297] Dumping ftrace buffer:
[   33.088915]    (ftrace buffer empty)
[   33.092597] Kernel Offset: disabled
[   33.096197] Rebooting in 86400 seconds..